sa110>Wrote the picture confirms the memory and HDD can be changed.
The latter almost certainly yes, but the former may take a little further checking, the article does say "The A9home owner said he tried to swap the amount of memory fitted to 256M although the machine then allegedly failed to boot". This could either be because the RAM he used wasn't exactly the right spec or perhaps the OS is set to only use 128MB or perhaps there isn't a full set of tracks to the RAM DIMM module socket.
The photograph is rather interesting, looks like Simtec toyed with the idea of supplying 2 full IDE sockets (they are the two unpopulated ones lower centre of the board). If those *had* been filled and useable the A9 would have made a proper desktop computer. I am (of course) assuming that the IDE tracks run to the empty socket holes. Pity, it means people need to use USB for any extra storage (at a speed cost) and a loss of functionality (CD/DVDBURN does not *currently* support writing on USB).
Nonetheless an impressive looking board (hard to credit that so much can be squished into such a small place).
jc> Perhaps if Ad6 had chosen to "publish" official photos no-one would have been tempted to open one up voiding their warranty? Can't understand why they didn't - it's not as if someone could "reverse engineer" one from the photo. Being a hardware geek I am always keen on seeing the innards - leaving the motherboard a mystery just encourages people to open 'em up - as in this case.